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[QVTO] mapping to EType [message #537763]

Thu, 03 June 2010 14:35

Christophe Bouhier

Messages: 937
Registered: July 2009

Senior Member

Hi,

When using QVTO, to generate an ecore, I run into this challenge
to produce a valid value for an EAttribute.eType. It needs to be an
EClassifier, which I would expect is a bunch of type literals I can
simply assign. I am not able to locate these literals.

In the end, the serialized eType value should something like this:

"ecore:EDataType http://www.eclipse.org/emf/2003/XMLType#//String"

I can generate it, but it would become a new type, instead of a
reference to an existing Literal.

What would be the solution for this?

thank you,

Christophe Bouhier

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Re: [QVTO] mapping to EType [message #537770 is a reply to message #537763]

Thu, 03 June 2010 15:19

Ed Merks

Messages: 33133
Registered: July 2009

Senior Member

Christophe,

Things like XMLTypePackage.Literals.STRING would do the trick in Java.
I'm not sure about QVTo.

Christophe Bouhier wrote:
> Hi,
>
>
> When using QVTO, to generate an ecore, I run into this challenge
> to produce a valid value for an EAttribute.eType. It needs to be an
> EClassifier, which I would expect is a bunch of type literals I can
> simply assign. I am not able to locate these literals.
>
> In the end, the serialized eType value should something like this:
>
> "ecore:EDataType http://www.eclipse.org/emf/2003/XMLType#//String"
>
> I can generate it, but it would become a new type, instead of a
> reference to an existing Literal.
>
> What would be the solution for this?
>
> thank you,
>
> Christophe Bouhier

Ed Merks
Professional Support: https://www.macromodeling.com/

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Re: [QVTO] mapping to EType [message #537805 is a reply to message #537763]

Thu, 03 June 2010 17:16

Alex Mising name

Messages: 51
Registered: August 2009

Member

This works for Ecore types:

modeltype Ecore "strict" uses 'http://www.eclipse.org/emf/2002/Ecore';
...
eType := Ecore::EString.oclAsType(EClassifier);

And this should work for XMLTypes:

modeltype XMLType "strict" uses 'http://www.eclipse.org/emf/2003/XMLType';
...
eType := XMLType::String.oclAsType(EClassifier);

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Re: [QVTO] mapping to EType [message #537851 is a reply to message #537763]

Thu, 03 June 2010 20:22

Sergey Boyko

Messages: 171
Registered: July 2009

Senior Member

Hi Christophe ,

There were already similar threads. Please have a look at

http://dev.eclipse.org/newslists/news.eclipse.modeling.m2m/m sg03742.html
another approach for Ecore primitive types referencing

http://dev.eclipse.org/newslists/news.eclipse.modeling.m2m/m sg03752.html
ECore primitive types referencing with help of black-box

http://dev.eclipse.org/newslists/news.eclipse.modeling.m2m/m sg03939.html
for UML primitive types referencing

Regards,
Sergey

> Hi,
>
>
> When using QVTO, to generate an ecore, I run into this challenge
> to produce a valid value for an EAttribute.eType. It needs to be an
> EClassifier, which I would expect is a bunch of type literals I can
> simply assign. I am not able to locate these literals.
>
> In the end, the serialized eType value should something like this:
>
> "ecore:EDataType http://www.eclipse.org/emf/2003/XMLType#//String"
>
> I can generate it, but it would become a new type, instead of a
> reference to an existing Literal.
>
> What would be the solution for this?
>
> thank you,
>
> Christophe Bouhier

Report message to a moderator

Re: [QVTO] mapping to EType [message #537930 is a reply to message #537805]

Fri, 04 June 2010 08:17

Christophe Bouhier

Messages: 937
Registered: July 2009

Senior Member

Thx Alex
Indeed it works.

Alex wrote:
> This works for Ecore types:
> modeltype Ecore "strict" uses 'http://www.eclipse.org/emf/2002/Ecore';
> ..
> eType := Ecore::EString.oclAsType(EClassifier); And this should work for
> XMLTypes:
> modeltype XMLType "strict" uses 'http://www.eclipse.org/emf/2003/XMLType';
> ..
> eType := XMLType::String.oclAsType(EClassifier);
>

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